Reinforcing device for concrete construction.



PATENTED JAN. 23, 1906.

APPLICATION FILED OCT. 21, 1904.

UNITED sTArns PATENT OFFICE.

REINFORCING DEVICE FOR CONCRETE CONSTRUCTION.

Specification of Letters Patent.

Patented. Jan. 23, 1906.

Application filed October 21', 1904. Serial No. 229,361.

To all whom it may concern: Be it known that I, GEORGE L, PIZABODY, a

citizen of the United States, residing at Pitts.-

- burg, in the county of Allegheny and State of Pennsrlvania, haveinvented certain new and useful Improvements in Reinforcing Devices forConcrete Constructions, of which the follov. ing is a specification,reference being had therein to the accompanying draw-- ings, formingpart of this specification, in whic'h.

Figure 1 is a longitudinal sectional view of a portionof aconcrete'structure provided with my improved reinforcin device, Fig. 2is a similar sectional view oi the device detached, showing an increasci1 number of horizontally-disposed intervening arms. Fig, 3 1s a' planview of Fig; 1, showing a portion of the device. Fig. 4 is'an enlargeddetail view, in sectional elevation, indicated by the line I" IV of Fig.3. Fig. 5 is a plan view illustrating a modification as to the form ofthe arms. Fig. 6 is an enlarged sectional detail view showing the formof arms of Fig. 5.

My invention relates to improvements in devices for incorporationwithconcrete structures, as bridges, ceilings, floors, &c. and it hasfd'rits object to strengthen and reinforce the concrete body portionconstituting the floor, &c embedded therein and provided with pro ectmgarms or branches arranged at any angle desired and seconstructed as tobe adjusted to suit the requirements of use and to make and maintain astrong bindin hold n the cement or concrete at closely-ad acentintervals.

The invention is designed to provide a reinforcing devicewhich will becapable of incorporation with the concrete in such a manstrengthgivingqualities of metallic nettmg-as, for instance, of woven wire orany othersimilar H1tt6T1Etl-COIlSt-lblll31llg a webbing or sheet-like base, withwhich I have combined or, connected holding arms; or

\ branches designed to project'atvarying angles from the webbing and toprovide means or reihforc' or strengthening the concrete structure in panes above or below the olane ofthe web. These supplemental ho dingarmsare ti htly connected with the body portion of t e webbingfar'e arrangedsufii-.

ciently close together to provide a suillcient number of arms totraverse or cross the probable line of fracture at two or more points inthe thickness of the concrete, and to thus counteract the tendency tobreakage or cleavage at all points.

Referring now to the drawings, 2 represents the cross-bar elements ofthe netting or other fabric or material employed as the base or bodyportion of the strengthening device, consisting of wires or bars crossedupon each other and connected in any suitable manner, as by knotting orwelding, and which may be of any length or width desired, according tothe dimensions of the concrete structure with which it is to beincorporated. Ti htly "secured upon these cross-wires, general y in onedirection only, but in both directions if desired-that is, lengthwiseand crosswise are a series of arms 3, consisting of wires or rods havingtheir ends wound around wires 2 or tightly connected with them illfilly, other suitable or desired manner. It will be understood thatstrips of sheet metal, bars, or any other similar or suitableconstruction or device may be employed in place of these arms 3 and thatthey may be formed in any suitable design as, for instance, incorrugated form turned at their endsor provided withholding-perforations or anchoring elements of any suitable type adaptedto engage and bind in and with the concrete body. As shown in thedrawings, it will be seen that the arms 3 are located sufhciently closetogether and are of su'llicient length to cross the probable line offracture a a, Fig. 1, attwo or more points. These arms may be erected ateach end of the base, as shown in 1, the intervening arms being allowedto conform to the plane of the web to strengthen 9 5 its horizontaltension,or they may be erected across the entire area, as desired.-.

In Fi s. 5 and 6 I have shown the arms 3 as merefy single rods or wires,which may be strai ht, as shown, or bent, curved, or corrugated in anysuitable or desired manner.

It will be readily understood that the proportions, sizes, number, andarrangement of ,theelements are not herein specifically provided for orlimited in any manner whatever, but that these features of the inventionand of its construction and application are to be considered as moreparticularly within the province'of the designing engineer or skilledmechanic and that all such changes and va- ITO scope sembled with thenetwork of the base at the and the arms may be bent up at the factoryplace of incorporation with the building. is placed in the body of theconcrete as the same is made in the of building, care being taken tobend the arms 3 to the desired angle, where they will be held by theirconnection with the frame 3 andwill become surrounded by the concreteand remain embedded therein.

The advantages of a device of this kind are well understood andappreciated, and my invention provides a simple, strong, cheap, andetlicient means for the purpose and is Well adapted to the objects inview.

Having described my invei'ition, what I claim is 1. A reinforcing devicefor concrete, &c., consisting of a flat web-like base having main andcross strands, and holding-arms connected therewith by winding theirextreniities around the strands of the base, substantially as set forth.

2. A reinforcing device for concrete, &c., consisting of. a flatweb-like base having main and cross strands, and looped holdingmold orin the operation arms attached thereto and adapted to be set 1 atvarving angles, substantially as set forth.

3. A reinforcing device for concrete, &c., consisting of a flat web-likebase having main and cross strands, and holdingarms attached theretoarranged to be bent in oppositely-disposed upwardly and .outwardlyslanting directions, substantially as set forth. for concrete, &c., likebase having consisting of a flat webniain and cross strands, and holdingarms.

I 4. A reinforcing device I l I attached to the main and cross strandsand adapted to be bent in relativel I and at varying angles to the base,substantially as set forth.

5. A reinforcing device for concrete, &c., consisting of a flat web-likebase having main and cross strands, and looped holding arms having theirextremities secured to the main and cross strands and adapted to be bentin relatively cross planes and at various angles to the base,substantially as set forth.

In testimony whereof I afiiX my signature in presence of two witnesses.

GEORGE L. PEABODY. Witnesses:

JAMES M00. MILLER, C. M. CLARKE.

cross planes

